Only TV show canceled midway through its first episode

Turn-On is an American sketch comedy series that aired on ABC in February 1969. Only one episode was shown, leaving one episode unaired, and the show is considered one of the most infamous flops in TV history.

Turn-On’s sole episode was shown on Wednesday, February 5, 1969, at 8:30 pm ET. Among the cast were Teresa Graves (who would join the Laugh-In cast that autumn), Hamilton Camp, and Chuck McCann. The writing staff included Albert Brooks. The guest host for the first episode was Tim Conway, who also participated in certain sketches.

Turn-On’s premise was that it was produced by a computer. Distinguishing characteristics of the show were its use of the Moog synthesizer and lack of sets, except for a white backdrop. Unlike Laugh-In the show “focused almost exclusively on sex as a comedic subject”, using various rapid-fire jokes and risqué skits, but no laugh track. The program was also filmed instead of presented live or on videotape. Several of the jokes were presented with the screen divided into four squares resembling comic strip panels. The production credits of the episode appeared after each commercial break, instead of conventionally at the beginning or end.